cache

Do Seeded Orderby Rand Queries Benefit from DB Caching?

Looking at the source of class-wp-query.php (ie, the WP_Query code), I find this: /* * Ensure the ID database query is able to be cached. * * Random queries are expected to have unpredictable results and * cannot be cached. Note the space before `RAND` in the string * search, that to ensure against a … Read more

How can I get the number of items stored under a cache group

Here is an untested one-liner, counting the cache data array returned from the magic __get method, with a fallback to an empty array if the group key is not set: ‘numberOfEntries’ => count( $wp_object_cache->cache[$group] ?? [] ); Another approach is to consider bindTo to access the private cache array of the $wp_object_cache instance via closure.

WPEngine caching + ACF Option field updates: Which cache is the culprit?

For a completely accurate answer you’ll need to ask WPEngine for support, but there’s some general things to consider. Normally when you visit a WordPress page, the WordPress PHP application needs to run so it can retrieve the content from the database and render it using your theme’s templates, and this involves loading and running … Read more

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